Why are Mashable, Reddit, Quora, Medium, Buzzfeed so popular? They can easily boast of maximized content engagement. But what else have they done to grow traffic to their websites? Such words as viral, buzz,...

Facebook executive Mike Schroepfer announced recently during a Web 2.0 summit, that the average amount of time people spend on Facebook is on average 8 billion minutes per day! That’s 15, 220 years spent...